JP2850658B2 - Coupled cavity traveling wave tube - Google Patents
Coupled cavity traveling wave tubeInfo
- Publication number
- JP2850658B2 JP2850658B2 JP21190892A JP21190892A JP2850658B2 JP 2850658 B2 JP2850658 B2 JP 2850658B2 JP 21190892 A JP21190892 A JP 21190892A JP 21190892 A JP21190892 A JP 21190892A JP 2850658 B2 JP2850658 B2 JP 2850658B2
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- wave tube
- loss
- electron beam
- frequency circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Microwave Tubes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、結合空胴型進行波管に
関し、特に高周波回路部の空胴構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupled cavity traveling wave tube, and more particularly to a cavity structure of a high-frequency circuit.
【０００２】[0002]
【従来の技術】従来の結合空胴型進行波管の高周波回路
部の空胴内には、２πモードでの発振及高インピーダン
ス領域での結合インピーダンスの不連続により生ずる発
振を抑制するために２πモードでの周波数及び高インピ
ーダンス領域での周波数で吸収特性をもつロス体を配設
していた。2. Description of the Related Art In a cavity of a high-frequency circuit section of a conventional coupled-cavity traveling-wave tube, 2π mode oscillation and 2π mode oscillation are suppressed in order to suppress oscillation caused by discontinuity of coupling impedance in a high impedance region. A loss body having absorption characteristics at the frequency in the mode and the frequency in the high impedance region is provided.
【０００３】図２（ａ）〜（ｃ）は、従来の空胴構造の
縦断面図，ＡＡ断面図，ＢＢ断面図である。ロスボタン
空胴１には発振防止用ロスボタン３が設置されており、
空胴２には利得低下を招くため発振防止用ロスボタン３
は設置されていない。このためロスボタン空胴１と空胴
２は形状が異なり、また、ロスボタン空胴１には発振防
止用ロスボタン３が設置されていることから共振周波数
が異なっている。FIGS. 2A to 2C are a longitudinal sectional view, an AA sectional view, and a BB sectional view of a conventional cavity structure. The loss button cavity 1 is provided with a loss button 3 for preventing oscillation.
Loss button 3 for preventing oscillation in cavity 2 to reduce gain
Is not installed. For this reason, the loss button cavity 1 and the cavity 2 have different shapes, and the resonance frequency is different because the loss button 3 for preventing oscillation is installed in the loss button cavity 1.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来の結合空
胴型進行波管の高周波回路は、ロス体を配した空胴とロ
ス体のない空胴とで構成されていたので、ロス体を配し
た空胴列とロス体のない空胴列との高周波の通過帯域に
相違が生じ、このため高インピーダンス領域でのマイク
ロ波の反射により発振が発生するという問題点があっ
た。The high-frequency circuit of the conventional coupled-cavity traveling-wave tube described above is composed of a cavity provided with a loss body and a cavity having no loss body. There is a difference in the high-frequency pass band between the arranged cavity row and the cavity row having no loss body, which causes a problem that oscillation occurs due to reflection of microwaves in a high impedance region.
【０００５】[0005]
【課題を解決するための手段】本発明の結合空胴型進行
波管の高周波回路部の空胴構造は、ロス体を配した空胴
とロス体のない空胴の共振周波数を空胴内にセラミック
等の誘電体を設置することにより同一とさせて、上記２
種類の空胴で構成する高周波回路の通過帯域を合わせた
ことを特徴としている。The cavity structure of the high-frequency circuit portion of the coupled cavity traveling wave tube according to the present invention is characterized in that the resonance frequency of the cavity in which the loss body is disposed and the resonance frequency of the cavity without the loss body are set in the cavity. By installing a dielectric material such as ceramic on the
It is characterized in that the pass bands of high-frequency circuits composed of different types of cavities are matched.
【０００６】[0006]
【実施例】次に本発明について図面を参照して説明す
る。図１（ａ）は本発明の一実施例の縦断面図であり、
図１（ｂ）は、図１（ａ）のＡ−Ａ断面図，図１（ｃ）
は図１（ａ）のＢ−Ｂ断面図である。本実施例では図１
（ａ），（ｃ）に示すようにロスボタン３のない空胴２
の共振周波数を発振防止用ロスボタン３が設置されてい
るロスボタン空胴１の共振周波数に一致させるために、
空胴２内にセラミック等の誘電体４を設置している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1A is a longitudinal sectional view of one embodiment of the present invention,
FIG. 1B is a sectional view taken along line AA of FIG. 1A, and FIG.
FIG. 2 is a sectional view taken along line BB of FIG. In this embodiment, FIG.
(A), (c), cavity 2 without loss button 3
To match the resonance frequency of the loss button cavity 1 in which the oscillation prevention loss button 3 is installed,
A dielectric 4 such as ceramic is provided in the cavity 2.
【０００７】これにより、ロスボタン空胴１で構成され
る高周波回路と空胴２で構成される高周波回路の通過帯
域は同一となり高インピーダンス領域での発振を防止す
ることができる。As a result, the high-frequency circuit composed of the loss button cavity 1 and the high-frequency circuit composed of the cavity 2 have the same pass band, so that oscillation in a high impedance region can be prevented.
【０００８】[0008]
【発明の効果】以上説明したように、高周波回路におい
てロス体を配した空胴と誘電体を設置した空胴の共振周
波数を同一にすることにより高周波回路の通過帯域を合
わせ高インピーダンス領域での発振を防止することがで
きるという効果を有する。As described above, in the high-frequency circuit, the pass band of the high-frequency circuit is matched by making the resonance frequency of the cavity in which the loss body is disposed equal to the resonance frequency of the cavity in which the dielectric is installed, so that the high-frequency circuit can be used. This has the effect that oscillation can be prevented.
【図１】本発明の一実施例の空胴構造を示し（ａ）図は
縦断面図，（ｂ）図は（ａ）図のＡ−Ａ断面図，（ｃ）
図は（ａ）図のＢ−Ｂ断面図である。1A and 1B show a cavity structure according to an embodiment of the present invention, wherein FIG. 1A is a longitudinal sectional view, FIG. 1B is a sectional view taken along line AA of FIG.
The figure is a sectional view taken along the line BB of FIG.
【図２】従来技術の空胴構造を示し（ａ）図は縦断面
図，（ｂ）図は（ａ）図のＡ−Ａ断面図，（ｃ）図は
（ａ）図のＢ−Ｂ断面図である。2 (a) is a longitudinal sectional view, FIG. 2 (b) is a sectional view taken along line AA in FIG. 2 (a), and FIG. 2 (c) is a sectional view taken along line BB in FIG. It is sectional drawing.
１ ロスボタン空胴 ２ 空胴 ３ 発振防止用ロスボタン ４ 誘電体 DESCRIPTION OF SYMBOLS 1 Loss button cavity 2 Cavity 3 Loss button for oscillation prevention 4 Dielectric
Claims (1)
ビームとの相互作用によりマイクロ波を増幅させる高周
波回路部と、マイクロ波との相互作用を終えた電子ビー
ムを捕捉するコレクタ部と、電子ビームを一定の径に集
束させる集束装置部からなる結合空胴型進行波管におい
て、高周波回路部の高インピーダンス領域での発振防止
用ロスボタンを設置した空胴とロスボタンのない空胴の
共振周波数を一致させるためにロスボタンのない空胴に
セラミック等の誘電体を設置したことを特徴とする結合
空胴型進行波管。1. An electron gun for emitting an electron beam, a high-frequency circuit for amplifying a microwave by interaction with the electron beam, a collector for capturing the electron beam after the interaction with the microwave, In a coupled-cavity traveling-wave tube consisting of a focusing device that focuses an electron beam to a certain diameter, a cavity with a loss button installed to prevent oscillation in the high impedance region of the high-frequency circuit and a cavity without a loss button A coupled-cavity traveling-wave tube characterized in that a dielectric material such as ceramic is provided in a cavity without a loss button in order to match resonance frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21190892A JP2850658B2 (en) | 1992-08-10 | 1992-08-10 | Coupled cavity traveling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21190892A JP2850658B2 (en) | 1992-08-10 | 1992-08-10 | Coupled cavity traveling wave tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0660820A JPH0660820A (en) | 1994-03-04 |
| JP2850658B2 true JP2850658B2 (en) | 1999-01-27 |
Family
ID=16613648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21190892A Expired - Lifetime JP2850658B2 (en) | 1992-08-10 | 1992-08-10 | Coupled cavity traveling wave tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2850658B2 (en) |
-
1992
- 1992-08-10 JP JP21190892A patent/JP2850658B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0660820A (en) | 1994-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981013 |